From the *University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND †Forensic Science Division, Eastern Montana Crime Lab, Montana State Department of Justice, Billings, MT ‡University of Washington School of Medicine, Seattle, WA. The authors report no conflict of interest. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. Reprints: Walter L. Kemp, MD, PhD, Forensic Science Division, Eastern Montana Crime Lab, Montana State Department of Justice, 1516 4th Ave N, Suite 1, Billings, MT 59101. E-mail: [email protected].